The feasibility study: Accuracy and precision of DHT 22 in measuring the temperature and humidity in the greenhouse

I.K. Wardani; A.N. Ichniarsyah; M. Telaumbanua; B. Priyonggo; R. Fil'Aini; Z. Mufidah; D.A. Dewangga

doi:10.1088/1755-1315/1230/1/012146

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The feasibility study: Accuracy and precision of DHT 22 in measuring the temperature and humidity in the greenhouse

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I.K. Wardani, A.N. Ichniarsyah, M. Telaumbanua, B. Priyonggo, R. Fil'Aini, Z. Mufidah, D.A. Dewangga

2023 IOP Conference Series: Earth and Environmental Science Vol. 1230 Issue 1 Conference paper Cited by 13 SDG 17SDG 7

Abstract

The greenhouse is a technology to overcome weather uncertainty as an impact of climate change. It can manage and control the temperature and humidity adjusted to the plant's needs. Therefore, it requires accurate input of climate data from the monitoring system. The study aims to design an affordable and feasible monitoring system using three DHT22 sensors installed in a greenhouse. In particular, the data is appeared on Liquid Cyrstal Display (LCD) and is transmitted to the Ubidots platform using ESP32. The accuracy level is quantified by the difference values between DHT22 and the thermos-hygrometer, while the precision level is calculated using the correlation analysis of each sensor. As a result, the accuracy of DHT22 in measuring the temperature and humidity is high, with Root Mean Square Error (RMSE) of 1.48°C and 3.18%, respectively. Furthermore, the correlation values are 0.81 and 0.85. In conclusion, the research successfully produces an appropriate real-time system to monitor temperature and humidity. © Published under licence by IOP Publishing Ltd.

Affiliations

Bogor Agricultural Development Polytechnic, Jl. Aria Surialaga, Kecamatan Bogor Barat, Jawa Barat, Kode Pos, Kota Bogor, 16119, Indonesia; Lampung University, Jl. Prof. Dr. Ir. Sumantri Brojonegoro No.1, Gedong Meneng, Kecamatan Rajabasa, Kota Bandar Lampung, Kode Pos, Lampung, 35141, Indonesia; Indonesian Agricultural Engineering Polytechnic, Jl. Sinarmas Boulevard, Situ Gadung No. 01, Kecamatan Pagedangan, Kode Pos, Banten, Tangerang, 15338, Indonesia; Institut Teknologi Sumatera, Jl. Terusan Ryacudu, Way Hui, Jati Agung, Kode Pos, Lampung Selatan, 35365, Indonesia; Larjeng Elektronik Kasihan, Kecamatan Bantul, Kode Pos, Yogyakarta, 55182, Indonesia

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